A Routing Method for WSN Linear Coverage Sleep Scheduling Based on Target Distance

Abstract

The invention relates to a routing method for WSN linear coverage dormancy scheduling based on target distance, comprising: each node enters a dormant mode after receiving the "Hello" message flooded by sink nodes and waits for the target to appear; after the target appears, it perceives the target The nodes will enter the working mode and elect the cluster head; after the election of the cluster head, the rest of the nodes in the working mode will implement the WSN linear coverage sleep scheduling method based on the target distance. The node forms the current cluster structure together with the cluster head; the cluster head of the current cluster structure predicts the position where the target will move, and activates the nodes around the predicted target moving position to form the next cluster structure; the following The cluster head of a cluster structure wakes up and receives the sensing data of each cluster node, and then fuses it and forwards it to the sink node through the preset transmission path. The invention can reduce redundant nodes and prolong network life.

Description

technical field [0001] The invention relates to the field of communication and information technology, in particular to a routing method for WSN linear coverage dormancy scheduling based on target distance. Background technique [0002] As a new information perception and acquisition method, Wireless Sensor Network (WSN) has been widely used in environmental detection, medical care, intelligent transportation and other fields. Among them, the target tracking technology supported by large-scale WSN can be directly applied to many scenarios, including the location finding of missing persons, vehicle navigation of intelligent transportation systems, and so on. It is an important research topic in this field to use an efficient method to reduce the energy consumption of nodes and effectively prolong the survival time of the network. [0003] Sleep scheduling is a key technology that can prolong the lifecycle of large-scale WSNs. Generally speaking, a large-scale WSN will rando...

AI Technical Summary

Problems solved by technology

[0004] Although great progress has been made in the research on dormant scheduling methods in recent years, when they are applied to target tracking scenarios, these studies do not take into account the scale of nodes involved in the scheduling method and the relationship between scheduling rules and targets, resulting in network Nodes that undertake critical tasks in the network mistakenly go to sleep, while idle nodes are mistakenly activated, which will cause coverage holes and redundant resources in the network

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